lizard-hipped adjective1 •Belonging to the clade Saurischia, a group of dinosaurs typically characterised by a pelvic structure in which the pubis projects forward, forming a three-pronged arrangement.All dinosaurs belonged to a group of reptiles called archosaurs. There were two separate types of dinosaur, the lizard-hipped dinosaurs (saurischians) and the bird-hipped dinosaurs (ornithischians). — 1975